The Spacer,ring, cataloged under National Stock Number 5365-00-992-7749, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-992-7749 |
| Primary Part Number | MBEU5053 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| FSC Application Data | 1. EJECTORS,SEAT,EXPLOSIVE,AIRCRAFT |
| Outside Diameter | 2.655 INCHES MINIMUM AND 2.660 INCHES MAXIMUM IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Inside Diameter | 2.400 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MBEU5053 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
| Reference | Meaning |
|---|---|
| 10177552 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5365-00-992-7749 is a Spacer,ring, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-992-7749 has 1 manufacturer part number on file: MBEU5053 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU5053: FSC Application Data: 1. EJECTORS,SEAT,EXPLOSIVE,AIRCRAFT; Outside Diameter: 2.655 INCHES MINIMUM AND 2.660 INCHES MAXIMUM IN; Overall Thickness: 0.250 INCHES NOMINAL IN; Inside Diameter: 2.400 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.